From a443506b8598bbd784cfe403ad1db2c7083ff465 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 11 Jan 2011 19:45:31 +0000 Subject: [PATCH] powerpc: Don't force MSR_RI in machine_check_exception We should never force MSR_RI on. If we take a machine check with MSR_RI off then we have no chance of recovering safely. Signed-off-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/traps.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 1b2cdc8eec9..6865002df6c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -627,7 +627,6 @@ void machine_check_exception(struct pt_regs *regs) return; if (user_mode(regs)) { - regs->msr |= MSR_RI; _exception(SIGBUS, regs, BUS_ADRERR, regs->nip); return; } @@ -643,10 +642,8 @@ void machine_check_exception(struct pt_regs *regs) return; #endif - if (debugger_fault_handler(regs)) { - regs->msr |= MSR_RI; + if (debugger_fault_handler(regs)) return; - } if (check_io_access(regs)) return; -- 2.39.2